Cleveland C33656 Square End Mill 0.25 in 2 Flute Hss Tin

Product Description

The CLEVELAND C33656 is a double-end square end mill designed for precision milling operations in machine shop and manufacturing environments. Built from high speed steel with a titanium nitride (TiN) finish, it delivers a 0.25 inch cutting diameter and a 0.5 inch length of cut. The two-flute spiral design with a 30-degree helix angle promotes efficient chip evacuation and clean cutting action. The 0.375 inch straight-cylindrical shank with a Weldon flat provides secure tool holding in standard end mill holders. This tool is installed and operated by machinists and CNC/manual mill operators.

The C33656 is suited for milling cast iron, non-ferrous metals, and steel in general-purpose applications. The double-end configuration provides two usable cutting ends, extending tool life and reducing cost per cut. Its centercutting geometry allows direct plunge entry into a workpiece without pre-drilling. At 3.375 inches overall length, it fits standard vertical milling machines and machining centers without extended-reach adapters. The Series HD-2 designation places it in Cleveland's heavy-duty two-flute lineup for regular-length tooling.

Key Features

• Double-end design provides two cutting ends per tool
• TiN coating improves surface hardness and reduces friction at the cutting edge
• 30-degree helix spiral flute promotes chip flow and reduces heat buildup
• Centercutting geometry allows direct plunge milling
• Right-hand cut and right-hand flute configuration for standard spindle operation
• Weldon flat on shank minimizes tool pullout in high-load cuts

Compatibility

Designed as an OEM-style tooling solution compatible with standard 0.375 inch end mill holders and collet chucks used on vertical milling machines and machining centers. Refer to your machine tool documentation to confirm holder compatibility before installation.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before loading or unloading the tool. Seat the shank fully in the holder and torque the set screw against the Weldon flat per the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a cut to avoid premature tool wear or workpiece damage.